Contiki-NG
leds-arch.c
1 /*
2  * Copyright (c) 2015 NXP B.V.
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  * notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  * notice, this list of conditions and the following disclaimer in the
12  * documentation and/or other materials provided with the distribution.
13  * 3. Neither the name of NXP B.V. nor the names of its contributors
14  * may be used to endorse or promote products derived from this software
15  * without specific prior written permission.
16  *
17  * THIS SOFTWARE IS PROVIDED BY NXP B.V. AND CONTRIBUTORS ``AS IS'' AND
18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20  * ARE DISCLAIMED. IN NO EVENT SHALL NXP B.V. OR CONTRIBUTORS BE LIABLE
21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27  * SUCH DAMAGE.
28  *
29  * This file is part of the Contiki operating system.
30  *
31  * Author: Theo van Daele <theo.van.daele@nxp.com>
32  *
33  */
34 #include "contiki.h"
35 #include "leds.h"
36 #include <AppHardwareApi.h>
37 
38 #define LED_G (1 << 16)
39 #define LED_R (1 << 17)
40 
41 static volatile leds_mask_t leds;
42 
43 /*---------------------------------------------------------------------------*/
44 void
45 leds_arch_init(void)
46 {
47  vAHI_DioSetDirection(0, LED_R | LED_G);
48  vAHI_DioSetOutput(0, LED_R | LED_G); /* Default off */
49  leds = 0;
50 }
51 /*---------------------------------------------------------------------------*/
53 leds_arch_get(void)
54 {
55  return leds;
56 }
57 /*---------------------------------------------------------------------------*/
58 void
59 leds_arch_set(leds_mask_t c)
60 {
61  uint32 on_mask = 0;
62  uint32 off_mask = 0;
63 
64  if(c & LEDS_GREEN) {
65  on_mask |= LED_G;
66  } else {
67  off_mask |= LED_G;
68  } if(c & LEDS_RED) {
69  on_mask |= LED_R;
70  } else {
71  off_mask |= LED_R;
72  } vAHI_DioSetOutput(on_mask, off_mask);
73  /* Both LEDs can not be switched on at the same time.
74  Will result in both leds being OFF */
75  if(on_mask == (LED_R | LED_G)) {
76  leds = 0;
77  } else {
78  leds = c;
79  }
80 }
Header file for the LED HAL.
uint8_t leds_mask_t
An OR mask datatype to represents multiple LEDs.
Definition: leds.h:164